I think it would be great at least if we will have an option to quickly chat with a Steem account user via eSteem for example and to use our wallet there sending some SBD or STEEM. Then group chats are also nice and useful feature but I guess it would be something like lightning network for btc, right? Blockchain is too slow for chatting...

Pavel Durov made amazing thing with Telegram. His child project Vkontakte social network was theft by russian mafia so he made a chat and now he made a social network out of this chat. You can blog in channels there, you can comment with groups or personally, you can even listen to the music again with some bots as we do in VK. I wonder if it is possible to build same for the Steem? I mean there would be a chat like application but actually you can see your news feed there, post, comment and do other things?